Question

In: Biology

If green is dominant to white, what is the predicted phenotypic ratio of a cross between...

If green is dominant to white, what is the predicted phenotypic ratio of a cross between 2 green heterozygotes?

Group of answer choices

all green

3 green:1 white

3 white: 1 green

2 green:2 white

Solutions

Expert Solution

ANSWER -

The correct answer of this question is option second ( 3 green : 1 white)

First we learn some term of genetics

Traits-

traits are inherited through the chromosomes and their constituent genes.

Genotype -

the genetic composition of a trait is known as genotype.

Phenotype -

phenotype is a trait of genotype that is visible or otherwise observable and can be measured.

Homozygous -

homozygous traits are those with two identical alleles in a gene pair.

Heterozygous -

heterozygous traits are those with two different alleles in a gene pair.

Dominant -

a dominant allele is one whose traits appear in both homozygous and heterozygous combination.

Recessive -

a recessive allele is one whose traits appears only in homozygous combination.

Now our question

So if green is dominant to white, and two heterozygous are crossed then we got phenotype ratio -

3 green : 1 white

gladiator answered 1 year ago

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